The story in Young and Dangerous 2 is told in two parts: the first focuses on Chicken and his exile in Taiwan skipped over in the first film. The second half deals with the Hung Hing Society trying to ally with Chicken's Taiwanese triad "San Luen". The character "Banana" (Jerry Lam) is recruited into Ho Nam's circle. At the same time, an election to obtain the branch leadership status of Causeway Bay is underway, with Chan Ho Nam as its prime candidate, until a rivalry breaks out between him and another Hung Hing member, "Tai Fei" (Anthony Wong).
Danny is a young cop partnered with Nick, a seasoned but ethically tainted veteran. As the two try to stop a gang war in Chinatown, Danny relies on Nick but grows increasingly uncomfortable with the way Nick gets things done.
Chow Yun-Fat plays Ko Chun, an extremely talented and well known gambler. On the eve of a big confrontation with a famous Singaporean gambler, Ko walks into a trap set by Knife, an avid but a so-so gambler (Andy Lau), meant for an Indian servant.
The 90's were the glory days for the Hong Kong Triads, an underground order that has stood the test of time, stemming from an offshoot of the Shaolin monks that fought as a resistance to overturn the government during the turn of the century.
Bud and Doyle are two losers who are doing nothing with their lives. Both of their girlfriends are actively involved in saving the environment, but the two friends couldn't care less about saving the Earth.
This time, a cataclysmic temblor hits Los Angeles, turning it into an island. The president views the quake as a sign from above, expels Los Angeles from the country and makes it a penal colony for those found guilty of moral crimes.